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>Appendix E. Release Notes</TD
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>E.86. Release 8.1.1</A
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><DIV
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><BLOCKQUOTE
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><P
><B
>Release Date: </B
>2005-12-12</P
></BLOCKQUOTE
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><P
>   This release contains a variety of fixes from 8.1.0.
   For information about new features in the 8.1 major release, see
   <A
HREF="release-8-1.html"
>Section E.87</A
>.
  </P
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><A
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>E.86.1. Migration to Version 8.1.1</A
></H2
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>    A dump/restore is not required for those running 8.1.X.
   </P
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><H2
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><A
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>E.86.2. Changes</A
></H2
><P
></P
><UL
><LI
><P
>Fix incorrect optimizations of outer-join conditions
(Tom)</P
></LI
><LI
><P
>Fix problems with wrong reported column names in cases
involving sub-selects flattened by the optimizer (Tom)</P
></LI
><LI
><P
>Fix update failures in scenarios involving CHECK constraints,
toasted columns, <SPAN
CLASS="emphasis"
><I
CLASS="EMPHASIS"
>and</I
></SPAN
> indexes (Tom)</P
></LI
><LI
><P
>Fix bgwriter problems after recovering from errors
(Tom)</P
><P
>The background writer was found to leak buffer pins after write errors.
While not fatal in itself, this might lead to mysterious blockages of
later VACUUM commands.</P
></LI
><LI
><P
>Prevent failure if client sends Bind protocol message
when current transaction is already aborted</P
></LI
><LI
><P
><TT
CLASS="FILENAME"
>/contrib/tsearch2</TT
> and <TT
CLASS="FILENAME"
>/contrib/ltree</TT
>
fixes (Teodor)</P
></LI
><LI
><P
>Fix problems with translated error messages in
languages that require word reordering, such as Turkish; also problems with
unexpected truncation of output strings and wrong display of the smallest
possible bigint value (Andrew, Tom)</P
><P
>These problems only appeared on platforms that were using our
<TT
CLASS="FILENAME"
>port/snprintf.c</TT
> code, which includes BSD variants if
<TT
CLASS="LITERAL"
>--enable-nls</TT
> was given, and perhaps others.  In addition,
a different form of the translated-error-message problem could appear
on Windows depending on which version of <TT
CLASS="FILENAME"
>libintl</TT
> was used.</P
></LI
><LI
><P
>Re-allow <TT
CLASS="LITERAL"
>AM</TT
>/<TT
CLASS="LITERAL"
>PM</TT
>, <TT
CLASS="LITERAL"
>HH</TT
>,
<TT
CLASS="LITERAL"
>HH12</TT
>, and <TT
CLASS="LITERAL"
>D</TT
> format specifiers for
<CODE
CLASS="FUNCTION"
>to_char(time)</CODE
> and <CODE
CLASS="FUNCTION"
>to_char(interval)</CODE
>.
(<CODE
CLASS="FUNCTION"
>to_char(interval)</CODE
> should probably use
<TT
CLASS="LITERAL"
>HH24</TT
>.) (Bruce)</P
></LI
><LI
><P
>AIX, HPUX, and MSVC compile fixes (Tom, Hiroshi
Saito)</P
></LI
><LI
><P
>Optimizer improvements (Tom)</P
></LI
><LI
><P
>Retry file reads and writes after Windows
NO_SYSTEM_RESOURCES error (Qingqing Zhou)</P
></LI
><LI
><P
>Prevent <SPAN
CLASS="APPLICATION"
>autovacuum</SPAN
> from crashing during
ANALYZE of expression index (Alvaro)</P
></LI
><LI
><P
>Fix problems with ON COMMIT DELETE ROWS temp
tables</P
></LI
><LI
><P
>Fix problems when a trigger alters the output of a SELECT
DISTINCT query</P
></LI
><LI
><P
>Add 8.1.0 release note item on how to migrate invalid
<TT
CLASS="LITERAL"
>UTF-8</TT
> byte sequences (Paul Lindner)</P
></LI
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